New Milford, IL
Full City Profile · Illinois · Winnebago County County
3.3
/5.0
B
Good
1,183
Population
437/sq mi density
$73,125
Median Income
$31,801 per capita
$130,200
Home Value
$123,397 Zillow
$750
Median Rent
10.7% income on rent
49°F
Avg Temperature
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.1 / 5.0
$73,125 median income, 7.2% unemployment
A+
Affordability
5.0 / 5.0
$130,200 home value, $750/mo rent
D
Education
1.7 / 5.0
8.5% bachelor's degree or higher
New Milford experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 22°F in January while summers reach 74°F in July. Annual precipitation totals 37.2 inches. The area receives 37.1 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
22°F Jan (-6°C)
74°F Jul (23°C)
| Annual Average | 49.4°F |
| 9% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 74°F (23°C) |
Geography
| Elevation | 778 ft (237 m) |
| Area | 0.6 sq mi (1.5 km²) |
| Population Density | 437/sq mi |
| Coordinates | 42.1691°N, 89.0698°W |
| Timezone | America/Chicago |
| County | Winnebago County County |
| Nearest Airport | Chicago/Rockford International (RFD) 2 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
| Good Days % | 69.0% |
| Unhealthy Days | 3 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0475 ppm |
| PM2.5 (Fine Particles) | 10.2 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.4 / 100 |
| Social Vulnerability | 38.9 / 100 |
| Community Resilience | 68.5 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively High |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 1.6 in | Coldest, Driest |
| February | 26°F (-4°C) | 1.6 in | |
| March | 37°F (3°C) | 2.4 in | |
| April | 49°F (10°C) | 3.8 in | |
| May | 60°F (16°C) | 4.2 in | |
| June | 70°F (21°C) | 5.2 in | Wettest |
| July | 74°F (23°C) | 3.8 in | Warmest |
| August | 72°F (22°C) | 4.2 in | |
| September | 64°F (18°C) | 3.6 in | |
| October | 52°F (11°C) | 2.6 in | |
| November | 39°F (4°C) | 2.3 in | |
| December | 27°F (-3°C) | 1.9 in |
New Milford has a seasonal temperature swing of 52°F / from 22°F in January to 74°F in July. Total annual precipitation is 37.2 inches, with June being the wettest month (5.2") and January the driest (1.6").